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Medications that Can Treat Alzheimer's Disease
Many people believe that Alzheimer’s disease (AD) can't be treated. The truth is that medications are available that may help slow the progression of symptoms. Although these drugs don’t work for everyone, they offer some hope for the more than 5 million people who have AD.
The FDA has approved five medications to treat Alzheimer’s disease. All the drugs may help temporarily prevent some AD symptoms, such as confusion and forgetfulness, from getting worse.
In addition to memory loss and confusion, AD can cause worsening speech and mood swings. In the later stages, the disease destroys a person’s personality and ability to think and function. In some people, AD worsens quickly. In others, it progresses slowly.
Just as the course of AD isn’t clear, neither is treatment. Existing drugs may slow the progression of AD in some people. The drugs are most effective when a person begins taking them as early as possible. It takes two to six weeks before any results appear.
These three drugs are used to treat AD in its early to middle stages:
A medication that can be used for all stages is called Donepezil (Aricept). Another drug, memantine (Namenda), is the only drug approved by the FDA for the later, more severe stages of AD. It can be taken alone or with another drug.
Certain side effects may prevent people from using medication for AD. For example, tacrine may cause liver damage. Donepezil, galantamine, and rivastigmine can cause nausea and vomiting. Memantine may cause dizziness and headache.
The appropriate use of AD medications may improve both the patient's quality of life and that of his or her caregivers as well. Ask your doctor for more information.
Alzheimer’s is a slowly progressive degenerative process of the brain, usually beginning after the age of 65 and becoming progressively more common with age. The disease is characterized by the loss of previous acquired cognitive functions causing a marked loss of recent memory as the hallmark symptom. This slowly progressive disorder leads to loss of executive functioning (planning and sequencing abilities, insight and judgment), language skills, visual perceptual skills and finally, almost all brain functions are lost. This process usually takes years to develop. Ultimately the patient is left in a profound vegetative state.
In order to understand the extent of the problem, we need to first understand the world’s aging population statistics. The 65 year old plus population in America is larger than the entire population of Canada. Two-thirds of all the people in the entire history of the world who have survived to the age of 65 years are still alive today. The fastest growing population segment in America is the 85-year old group. Today there are approximately 5 ½ million patients with Alzheimer’s disease in America. By 2010 there will be one-half million patients per year. By 2050 that number will reach one million new patients per year. Globally, there are approximately 26 ½ million patients with Alzheimer’s disease that is roughly 1 in 8! Every 71 seconds today, someone in America develops Alzheimer’s disease! The hopeful news however, is that by delaying the onset of Alzheimer’s disease by just 1 year, would result in 200,000 fewer cases during the next 10 years.
Risk Factors for the Development of Alzheimer’s Disease
The first four risk factors basically are not controllable. The greatest risk for the development of Alzheimer’s disease is age. Ten percent of persons aged 65 have Alzheimer’s disease. That number increases to almost 50% at 85 years. Gender also is a risk factor and that risk falls on females slightly greater than males. This variant probably relates to the phenomena of females outliving males. African Americans and Latinos have the greatest risk factor as far as race is concerned. Genetics or hereditary Alzheimer’s disease is very uncommon. Only 5% or less patients have the hereditary form of Alzheimer’s disease. The hereditary Alzheimer’s disease is usually early onset and usually begins in the patient’s late 50’s. It has also been statistically suggested that persons that have a first order relative, (brother, sister, mother, father) with Alzheimer’s disease have a 5 to 6 times increased risk of developing the disorder.
Somewhat controllable risk factors are obesity, Type- II diabetes, heart disease, stroke, and hypertension. These medical problems encourage development of Alzheimer’s disease earlier that what would have taken place “naturally”. Additional risk factors are low education achievement and low socioeconomic status.
Can Alzheimer’s be prevented?
Probably Alzheimer’s disease cannot be prevented, at least at present. The disorder can however be postponed by controlling our diet, exercise profile, medical risk factors and continuing to “exercise” our brain. The best diet to follow for the prevention of Alzheimer’s disease is a Mediterranean diet. This diet consists of consuming red meat only a few times a month. Sweets, eggs, poultry, and fish can be consumed a few times a week. Finally yogurt, cheese, olive oil, vegetables, beans, nuts, fruit and berries, whole grain bread, pasta, rice, couscous, potatoes, can be consumed daily.
Active exercise could include running, jogging, golf, senior sports, and walking. A brisk walk every other day for 30 minutes is excellent exercise. Of all physical exercise, dancing seems to offer the greatest prevention. This probably is accounted for not only the exercise itself but the musical enlightenment as well as the social interaction. Medical conditions such as heart disease, hypertension, obesity and Type II diabetes may require medically managed pharmaceutical interventions, but as mentioned above, are definite risk factors that can be adjusted.
The last controllable risk factor is the brain exercises. It is important to learn something new each day of the week. This could be learning a poem, new words, new language or even a new way to drive home. Playing board games, crossword puzzles, reading, playing a musical instrument all add to brain exercise.
At present there is no cure for Alzheimer’s disease. There is no treatment that stops the slow progression of Alzheimer’s disease. There are however, four commercially available medications: Aricept, Exelon, Razadyne and Namenda. At best these medications are only marginally effective by slowing down the progression of Alzheimer’s disease. Extensive research is presently underway, hoping to find some type of treatment that will stop or reverse the progression of Alzheimer’s disease. The cure for Alzheimer’s disease is probably much more allusive however.
Although the future for Alzheimer’s disease seems worrisome from the epidemic proportion of patients predicted to suffer from Alzheimer’s disease, we can continue to attempt to postpone the onset and rest assure that a better treatment is one the horizon. A cure may never come for Alzheimer’s disease, but the disorder can be postponed and this will result in the substantial reduction in the number of patients developing this mind stealing disorder in the future.
H. Murray Todd, MD
Medical Director, Memory Disorder Center
Broward Health North
Dr. Todd, a highly acclaimed neurologist, has been a member of the Neurologic Consultants in Fort Lauderdale since 1973. He played a vital role in establishing both the Memory Disorder Center and Neurological Institute at Broward Health North and currently serves as Medical Director for both. He was instrumental in helping Broward Health North attain Joint Commission Certification for its' Alzheimer's Disease program, the first in the Nation to achieve this certification.